.page-contact {
  --ct-gap: clamp(16px, 2.4vw, 26px);
  --ct-shadow: 0 20px 44px -32px rgba(2, 10, 20, .95);
  padding-top: clamp(14px, 2.6vw, 24px);
  background:
    radial-gradient(1100px 480px at 88% -6%, rgba(53, 242, 228, .09), transparent 62%),
    radial-gradient(860px 420px at 4% 10%, rgba(255, 122, 47, .07), transparent 64%);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact input:focus-visible,
.page-contact textarea:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-bottom: clamp(36px, 6vw, 64px);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.page-contact .ct-hero__title {
  margin: 14px 0 18px;
  font-size: clamp(38px, 6.4vw, 62px);
  line-height: 1.05;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--white);
}

.page-contact .ct-hero__title::after {
  content: "";
  display: block;
  width: 68px;
  height: 4px;
  margin-top: 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
}

.page-contact .ct-hero__lead {
  max-width: 46ch;
  margin: 0 0 24px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--mist);
  opacity: .88;
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.page-contact .ct-hero__meta {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 13px;
}

.page-contact .ct-hero__meta li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--line);
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .ct-hero__meta span {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--steel);
  letter-spacing: .04em;
}

.page-contact .ct-hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: var(--ct-shadow);
}

.page-contact .ct-hero__visual::before {
  content: "SIGNAL · 04";
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: rgba(8, 20, 38, .72);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-contact .ct-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .ct-hero__caption {
  position: absolute;
  inset: auto 0 0 0;
  display: grid;
  gap: 4px;
  padding: 22px 16px 14px;
  background: linear-gradient(to top, rgba(8, 20, 38, .96), rgba(8, 20, 38, 0));
}

.page-contact .ct-hero__caption-k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-hero__caption-v {
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 章节标题 ---------- */
.page-contact .ct-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3.4vw, 32px);
}

.page-contact .ct-head__sub {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
}

/* ---------- 四条通道 ---------- */
.page-contact .ct-lanes {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-lane {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(15, 32, 56, .96), rgba(8, 20, 38, .96));
  box-shadow: inset 0 1px 0 rgba(233, 243, 247, .04);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-lane::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 3px;
  height: 24px;
  border-radius: 0 3px 3px 0;
  background: var(--steel);
}

.page-contact .ct-lane--a::before { background: var(--orange); }
.page-contact .ct-lane--b::before { background: var(--cyan); }
.page-contact .ct-lane--c::before { background: var(--grass); }
.page-contact .ct-lane--d::before { background: var(--brick); }

.page-contact .ct-lane:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 18px 36px -28px rgba(53, 242, 228, .55);
}

.page-contact .ct-lane__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .ct-lane__no {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--steel);
}

.page-contact .ct-lane__title {
  margin: 0;
  font-size: clamp(18px, 2.1vw, 21px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .ct-lane__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  opacity: .86;
}

.page-contact .ct-lane__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 12px 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
}

.page-contact .ct-lane__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--steel);
}

.page-contact .ct-lane__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: .6;
}

.page-contact .ct-lane__link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-size: 13.5px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 228, .35);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-lane__link::after {
  content: " →";
}

.page-contact .ct-lane__link:hover {
  color: var(--white);
  border-color: var(--white);
}

/* ---------- 预约流程 ---------- */
.page-contact .ct-flow__grid {
  display: grid;
  gap: clamp(26px, 4vw, 42px);
  align-items: start;
}

.page-contact .ct-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-step {
  position: relative;
  padding: 0 0 26px 56px;
}

.page-contact .ct-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 42px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line), rgba(39, 64, 95, .1));
}

.page-contact .ct-step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--ink-900);
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--orange);
  transition: border-color var(--dur) var(--ease);
}

.page-contact .ct-step:hover .ct-step__num {
  border-color: var(--orange);
}

.page-contact .ct-step__title {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-contact .ct-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .ct-step__eta {
  display: inline-block;
  margin-top: 10px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: rgba(53, 242, 228, .06);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--cyan);
  opacity: .55;
  transform: translateY(2px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ct-step:hover .ct-step__eta {
  opacity: 1;
  transform: translateY(0);
}

.page-contact .ct-flow__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .ct-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 联系方式 ---------- */
.page-contact .ct-direct__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-file {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: clamp(18px, 2.2vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--ink-800);
  box-shadow: var(--ct-shadow);
}

.page-contact .ct-file--mail {
  background: linear-gradient(160deg, rgba(53, 242, 228, .1), rgba(15, 32, 56, .96) 46%);
}

.page-contact .ct-file__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .ct-file__value {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(16px, 1.9vw, 20px);
  line-height: 1.45;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .ct-file__value--sm {
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-file__note {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-contact .ct-titles {
  margin-top: var(--ct-gap);
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px dashed var(--line);
  border-radius: var(--radius-m);
  background: rgba(15, 32, 56, .55);
}

.page-contact .ct-titles__title {
  margin: 0 0 14px;
  font-size: 16px;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .ct-titles__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-titles__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(8, 20, 38, .7);
}

.page-contact .ct-titles__k {
  flex: 0 0 auto;
  padding: 3px 7px;
  border-radius: 4px;
  background: var(--cyan);
  color: var(--ink-900);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
}

.page-contact .ct-titles__v {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--mist);
  overflow-wrap: anywhere;
}

/* ---------- 需求填写 ---------- */
.page-contact .ct-request {
  padding-bottom: clamp(48px, 7vw, 80px);
}

.page-contact .ct-request__grid {
  display: grid;
  gap: clamp(22px, 3.6vw, 34px);
  align-items: start;
}

.page-contact .ct-form {
  display: grid;
  gap: 16px;
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(15, 32, 56, .94), rgba(8, 20, 38, .94));
}

.page-contact .ct-field {
  display: grid;
  gap: 8px;
}

.page-contact .ct-field-row {
  display: grid;
  gap: 16px;
}

.page-contact .ct-field__label {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-contact .ct-input {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(8, 20, 38, .85);
  color: var(--mist);
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.6;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ct-input::placeholder {
  color: #5E7793;
}

.page-contact .ct-input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 242, 228, .16);
}

.page-contact .ct-input--area {
  resize: vertical;
  min-height: 110px;
}

.page-contact .ct-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .ct-chip {
  position: relative;
  display: inline-flex;
}

.page-contact .ct-chip input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.page-contact .ct-chip span {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(8, 20, 38, .7);
  color: var(--steel);
  font-size: 13.5px;
  line-height: 1.4;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .ct-chip span:hover {
  border-color: var(--cyan);
  color: var(--mist);
}

.page-contact .ct-chip input:checked + span {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink-900);
}

.page-contact .ct-chip input:focus-visible + span {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-contact .ct-form__hint {
  margin: 2px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(255, 122, 47, .08);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .ct-aside {
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(15, 32, 56, .96), rgba(8, 20, 38, .96));
  box-shadow: var(--ct-shadow);
}

.page-contact .ct-aside__list {
  display: grid;
  margin: 0 0 14px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-aside__list > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-aside__list dt {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-contact .ct-aside__list dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  text-align: right;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .ct-aside__note {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

.page-contact .ct-aside__link {
  padding-bottom: 2px;
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 228, .35);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .ct-aside__link:hover {
  color: var(--white);
  border-color: var(--white);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-field-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-titles__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-contact .ct-direct__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(32px, 4.5vw, 64px);
  }

  .page-contact .ct-lanes {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .ct-lane--a { grid-column: 1 / span 7; }
  .page-contact .ct-lane--b { grid-column: 8 / span 5; margin-top: 38px; }
  .page-contact .ct-lane--c { grid-column: 1 / span 5; }
  .page-contact .ct-lane--d { grid-column: 6 / span 7; margin-top: 38px; }

  .page-contact .ct-flow__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }

  .page-contact .ct-request__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr);
  }

  .page-contact .ct-aside {
    position: sticky;
    top: calc(var(--header-offset) + 16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-lane,
  .page-contact .ct-lane__link,
  .page-contact .ct-step__num,
  .page-contact .ct-step__eta,
  .page-contact .ct-input,
  .page-contact .ct-chip span,
  .page-contact .ct-aside__link {
    transition: none;
  }

  .page-contact .ct-lane:hover {
    transform: none;
  }

  .page-contact .ct-step__eta {
    opacity: 1;
    transform: none;
  }
}